PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/11-21:12:40
G02     221.7          65.5               15.0 +/-    1.15      16.3 +/-    1.15  0.050 / 0.080
G06     47.2           68.0               11.7 +/-    0.80      12.5 +/-    0.80  0.060 / 0.090
G12     320.6          42.9               10.8 +/-    1.12      14.9 +/-    1.12  0.040 / 0.050
G17     61.1           30.4               11.2 +/-    0.78      19.4 +/-    0.78  0.050 / 0.060
G19     43.6           47.2               11.1 +/-    0.85      14.5 +/-    0.85  0.040 / 0.080
G24     257.1          40.0               14.0 +/-    1.10      20.4 +/-    1.10  0.030 / 0.080